1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
4 Copyright (C) 2020 Collabora Ltd.
5
6 This software is provided 'as-is', without any express or implied
7 warranty. In no event will the authors be held liable for any damages
8 arising from the use of this software.
9
10 Permission is granted to anyone to use this software for any purpose,
11 including commercial applications, and to alter it and redistribute it
12 freely, subject to the following restrictions:
13
14 1. The origin of this software must not be misrepresented; you must not
15 claim that you wrote the original software. If you use this software
16 in a product, an acknowledgment in the product documentation would be
17 appreciated but is not required.
18 2. Altered source versions must be plainly marked as such, and must not be
19 misrepresented as being the original software.
20 3. This notice may not be removed or altered from any source distribution.
21*/
22
23#include "../../SDL_internal.h"
24
25#ifndef SDL_evdev_capabilities_h_
26#define SDL_evdev_capabilities_h_
27
28#if HAVE_LIBUDEV_H || defined(SDL_JOYSTICK_LINUX)
29
30#include <linux/input.h>
31
32/* A device can be any combination of these classes */
33typedef enum
34{
35 SDL_UDEV_DEVICE_UNKNOWN = 0x0000,
36 SDL_UDEV_DEVICE_MOUSE = 0x0001,
37 SDL_UDEV_DEVICE_KEYBOARD = 0x0002,
38 SDL_UDEV_DEVICE_JOYSTICK = 0x0004,
39 SDL_UDEV_DEVICE_SOUND = 0x0008,
40 SDL_UDEV_DEVICE_TOUCHSCREEN = 0x0010,
41 SDL_UDEV_DEVICE_ACCELEROMETER = 0x0020
42} SDL_UDEV_deviceclass;
43
44#define BITS_PER_LONG (sizeof(unsigned long) * 8)
45#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
46#define EVDEV_OFF(x) ((x)%BITS_PER_LONG)
47#define EVDEV_LONG(x) ((x)/BITS_PER_LONG)
48#define test_bit(bit, array) ((array[EVDEV_LONG(bit)] >> EVDEV_OFF(bit)) & 1)
49
50extern int SDL_EVDEV_GuessDeviceClass(unsigned long bitmask_ev[NBITS(EV_MAX)],
51 unsigned long bitmask_abs[NBITS(ABS_MAX)],
52 unsigned long bitmask_key[NBITS(KEY_MAX)],
53 unsigned long bitmask_rel[NBITS(REL_MAX)]);
54
55#endif /* HAVE_LIBUDEV_H || defined(SDL_JOYSTICK_LINUX) */
56
57#endif /* SDL_evdev_capabilities_h_ */
58
59/* vi: set ts=4 sw=4 expandtab: */
60